FITS images used in this processing run:

Field Scl-01-Q2b1x1 reference image: Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
Field Scl-01-Q2b1x1 reference image: Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
Field Scl-01-Q2b1x1 second-epoch image: Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
Field Scl-01-Q2b1x1 second-epoch image: Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461228.89270660 07.07.2026 09:25:19.850   /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
First image: 2461228.89270660 07.07.2026 09:25:19.850   /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
Last  image: 2461286.74956072 03.09.2026 05:59:12.046   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -8.60
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 2 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  10.0             # minimum number of pixels above threshold
DETECT_THRESH   10.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 10.0             #  or , in mag.arcsec-2
SATUR_LEVEL     55000.0         # level (in ADUs) at which arises saturation
GAIN            0.37            # detector gain in e-/ADU
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  1387
Objects passed selection criteria:  1386
Measurements per detected object (mean, median, min, max):    3.7    4.0    2    4
Measurements per selected object (mean, median, min, max):    3.7    4.0    2    4
Average stars detected per image: 1317.25
Average stars matched: 1296.75 (98.4437 %)
Memory usage VmPeak:   228588 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Wed Sep  2 15:05:04 CDT 2026
VaST build number  1.0rc89-201-ga7d4d23b
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-02)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Thu Sep  3 03:14:01 CDT 2026
Host name: tau
############################################################
## VaST run with SExtractor config file default.sex.telephoto_lens_vSTL ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461228.89270660 07.07.2026 09:25:19.850   /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
First image: 2461228.89270660 07.07.2026 09:25:19.850   /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
Last  image: 2461286.74956072 03.09.2026 05:59:12.046   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 20
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -8.27
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 5 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  2.0             # minimum number of pixels above threshold
DETECT_THRESH   3.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 3.0             #  or , in mag.arcsec-2
SATUR_LEVEL     57000.0         # level (in ADUs) at which arises saturation
GAIN            0.83            # detector gain in e-/ADU
WEIGHT_TYPE BACKGROUND
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  9271
Objects passed selection criteria:  9252
Measurements per detected object (mean, median, min, max):    3.6    4.0    2    4
Measurements per selected object (mean, median, min, max):    3.6    4.0    2    4
Average stars detected per image: 8770
Average stars matched: 8540 (97.3774 %)
Memory usage VmPeak:   235976 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Wed Sep  2 15:05:04 CDT 2026
VaST build number  1.0rc89-201-ga7d4d23b
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-02)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Thu Sep  3 03:14:38 CDT 2026
Host name: tau
############################################################

######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-2 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst
CAMERA_SETTINGS= TTUQ2b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ2.txt
FILTER_BAD_IMG__MAX_APERTURE_STAR_SIZE_PIX= 12.5
FILTER_BAD_IMG__MAX_ELONGATION_AminusB_PIX= 0.55
FILTER_BAD_IMG__MIN_APERTURE_STAR_SIZE_PIX= 2.0
FILTER_BRIGHT_MAG_CUTOFF_TRANSIENT_SEARCH= -5
FILTER_FAINT_MAG_CUTOFF_TRANSIENT_SEARCH= 15.5
FLAT_FIELD_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/flats
FRAME_EDGE_OFFSET_PIX= 600
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK= yes
MAX_NEW_IMG_MEAN_VALUE= 25000
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS= 0.18
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS_SOFT_LIMIT= 0.12
MPC_CODE= V36
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 10000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 8000
OMP_NUM_THREADS= 3
ONLINE_MPCHECKER_BUTTON_ASTEROID_SEARCH_RADIUS_ARCMIN= 
PHOTOMETRIC_CALIBRATION= 
REQUIRE_PIX_SHIFT_BETWEEN_IMAGES_FOR_TRANSIENT_CANDIDATES= yes
SEXTRACTOR_CONFIG_BRIGHTSTARPASS= default.sex.telephoto_lens_onlybrightstars_v1
SEXTRACTOR_CONFIG_FILES= default.sex.telephoto_lens_onlybrightstars_v1 default.sex.telephoto_lens_vSTL
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=vizquery (lib/vizquery -> VizieR vizier.cds.unistra.fr)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
Scl-01-Q2b1x1
#######################################
########### Starting Scl-01-Q2b1x1 ###########
Processing Scl-01-Q2b1x1
server tau has sufficient free disk space available: 244034 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 244034 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
Small preview (one of the new images): 

Large previews of the second-epoch (new) images:

MAKE_PNG_PLOTS=yes


renamed 'Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.png' -> 'transient_report/Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits_preview.png'

Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits


renamed 'Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.png' -> 'transient_report/Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits_preview.png'

Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits




Read-check the input FITS images... read-check OK
Blank image check the input FITS images... blank-image-check OK
Read date check the input FITS images... read-date-check OK
Mean value check the input FITS images... OK, at least two new images have mean values below the threshold.
----------------------------------------------
INFO: REFERENCE_EPOCH__FIRST_IMAGE_MEAN_VALUE= 3717.8694
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 587.5175
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 4604.7674
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 1143.0142
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 4579.0647
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 1139.5774
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 1.23855
INFO:                  SECOND_EPOCH__SD_ratio= 0.003
INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image
----------------------------------------------
Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/flats
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     25.2099990844727 / [degC] Focuser temperature
AMBTEMP =                 26.8 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-09-03T00:58:29.3689991' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-03T05:58:29.3689991' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61286.2489510183 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-03T05:58:39.2701310' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =      61286.249065625 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     359.999630119573 / [deg] RA of telescope" status=0
Record 32: "DEC     =    -25.9996902664656 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     23.8561111111111 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     150.317222222222 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     2.46028876841747 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'Scl-01'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '00 00 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '-26 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20487 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20487 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     25.2099990844727 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     25.2099990844727 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 10.4 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 36.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=                899.7 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 26.8 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                  5.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             5.400432 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             5.400432 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/d_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits :)

Spent 0.507720 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/d_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     25.2099990844727 / [degC] Focuser temperature
AMBTEMP =                 26.8 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-09-03T00:59:12.0468275' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-03T05:59:12.0468275' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61286.2494449769 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-03T05:59:21.9543592' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =      61286.249559653 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     359.999630081388 / [deg] RA of telescope" status=0
Record 32: "DEC     =     -25.999690262777 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     23.9316666666667 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     150.478333333333 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     2.45306550424896 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'Scl-01'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '00 00 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '-26 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20487 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20487 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     25.2099990844727 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     25.2099990844727 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 10.4 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 36.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=                899.7 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 26.8 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                  5.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             5.400432 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             5.400432 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/d_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits :)

Spent 0.502000 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/d_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
Dark frame used to calibrate the second-epoch images:



Flat field used to calibrate the second-epoch images:



after the calibration attempt:
SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
Previews of the CALIBRATED second-epoch images:


fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits



fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits




Updating neverexclude_list.txt
'/var/www/nmw_calibration/neverexclude_list.txt' -> './neverexclude_list.txt'
Choosing bad regions list
'/var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst' -> 'bad_region.lst'
wait
*------ default.sex.telephoto_lens_onlybrightstars_v1 ------*
'default.sex.telephoto_lens_onlybrightstars_v1' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_onlybrightstars_v1

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
  
SExtractor catalog cache: saved Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.cat to cache
SExtractor catalog cache: saved Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_onlybrightstars_v1
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
Checking WCS cache directory local_wcs_cache
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Found WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
The reference JD(UT) for computing planet and comet positions: 2461286.74906676
Re-using ../tocp_transients_list.txt
'../tocp_transients_list.txt' -> 'tocp_transients_list.txt'
Re-using ../tns_transients_list.txt
'../tns_transients_list.txt' -> 'tns_transients_list.txt'
Plate-solving the images
'asassn_transients_list.txt' -> '../asassn_transients_list.txt'
wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits exists and is non-empty
wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits exists and is non-empty
wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits exists and is non-empty
wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits (1st reference image)
verification OK: wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
Image size: 937.8'x624.7'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 23:59:59.880 -25:59:51.98 J2000 4789.000 3195.000 
###################################
The image scale is 5.88"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.8"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits (1st new image)
verification OK: wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
Image size: 937.7'x624.6'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 00:00:01.831 -26:00:28.86 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 23:59:59.880 -25:59:51.98
Second-epoch image center 00:00:01.831 -26:00:28.86
Angular distance between the image centers 0.0126 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits (2nd new image)
verification OK: wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
Image size: 937.7'x624.6'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 00:00:01.209 -26:00:20.38 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 23:59:59.880 -25:59:51.98
Second-epoch image center 00:00:01.209 -26:00:20.38
Angular distance between the image centers 0.0093 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  00:00:01.831 -26:00:28.86
Second-epoch second image center 00:00:01.209 -26:00:20.38
Angular distance between the image centers 0.00331 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits &> /tmp/tmp.O2b2bWRxKi
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits &> /tmp/tmp.IFZ0Pvt9u2
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits &> /tmp/tmp.GYU0njXVVM
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits &> /tmp/tmp.zqxOWa5z3C
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
Calibrating the magnitude scale
Found non-empty wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits and wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits and wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat 
Found non-empty wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits and wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat
The reference image (wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits) and catalog (wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat) found
'wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat' -> 'wcsmag.cat'
The field straddles RA=0: the RA boundaries wrap around (min > max)
Read 1832 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 351.0308 to 9.1144 deg, Dec -31.2631 to -20.5811 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 351.0308 to 9.1144 deg, Dec -31.2631 to -20.5811 deg
Loaded 4401 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 1460 out of 1482 total matches.
Matched with Tycho-2 1482 out of 1832 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.281850
a=0.000000 b=1.000000 c=22.281850
From vast_summary.log: estimated ref. image limiting mag.:  -8.60
Updating vast_summary.log: Estimated ref. image limiting mag.:  13.68

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  13.68

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
The field straddles RA=0: the RA boundaries wrap around (min > max)
Read 1832 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 351.0308 to 9.1144 deg, Dec -31.2631 to -20.5811 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 351.0308 to 9.1144 deg, Dec -31.2631 to -20.5811 deg
Loaded 4401 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 1460 out of 1482 total matches.
Matched with Tycho-2 1482 out of 1832 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
Forced-photometry filter: calibrated wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits -> calib.txt_param_ref_wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits (aperture=6.4)
The field straddles RA=0: the RA boundaries wrap around (min > max)
Read 1834 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 351.0288 to 9.1191 deg, Dec -31.2300 to -20.5810 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 351.0288 to 9.1191 deg, Dec -31.2300 to -20.5810 deg
Loaded 4388 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 1496 out of 1514 total matches.
Matched with Tycho-2 1514 out of 1834 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
Forced-photometry filter: calibrated wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits -> calib.txt_param_ref_wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits (aperture=6.4)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 0 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.3 pix  Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
 2.3 pix  Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
 2.4 pix  fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
 2.4 pix  fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
Limiting magnitude estimates:
 13.7 mag.  Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
 13.7 mag.  Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
 13.3 mag.  fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
 13.4 mag.  fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
All-image limiting magnitude estimate:  13.3 (SNR )  10.6 (80% of stars)  with default.sex.telephoto_lens_onlybrightstars_v1
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
cp: cannot create regular file 'local_wcs_cache/': Not a directory
############ /tmp/tmp.O2b2bWRxKi (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits' -> 'wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
WCS_IMAGE_NAME=wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
WCS-calibrated image found: wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
Checking if the catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat corresponding to the image wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits alredy exist and is non-empty...
Catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat corresponding to the image wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
WCS catalog name: wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=186, bad_region=377, passed=1832
Got 1832 stars (including 1317 good ones) from the SExtractor catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat 
util/solve_plate_with_UCAC5 got 1832 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.8'
Seting catalog search parameters based on the expected field of view 937.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013025 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010420 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
RA wraps around 0/360 boundary: field RA 351.0308 through 0 to 9.1144, gap 9.1144 to 351.0308
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 349 (Dec -31.3 to -20.6)
Done reading UCAC5 zone files...
Matched 1271 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1269 matched stars entering correct_measured_positions(), 1269 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.41" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1269 matched stars entering correct_measured_positions(), 1524 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.40" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
RA wraps around 0/360 boundary: field RA 351.0294 through 0 to 9.1143, gap 9.1143 to 351.0294
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 349 (Dec -31.3 to -20.6)
Done reading UCAC5 zone files...
Matched 1271 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1269 matched stars entering correct_measured_positions(), 1524 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Accuracy estimation diagnostic: 1269 matched stars entering correct_measured_positions(), 1524 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Excluding outliers - 1269 stars left (next iteration limit 1395)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits N_match=1269 sigma_overall_arcsec=0.421 sigma_q1_arcsec=0.376 sigma_q2_arcsec=0.389 sigma_q3_arcsec=0.452 sigma_q4_arcsec=0.425 n_q1=428 n_q2=224 n_q3=406 n_q4=211 worst_quadrant_to_overall_ratio=1.074
The image catalog is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits -region wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.IFZ0Pvt9u2 (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits 572.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits' -> 'wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
WCS_IMAGE_NAME=wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
WCS-calibrated image found: wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
Checking if the catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat corresponding to the image wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits alredy exist and is non-empty...
Catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat corresponding to the image wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
WCS catalog name: wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=187, bad_region=373, passed=1834
Got 1834 stars (including 1319 good ones) from the SExtractor catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat 
util/solve_plate_with_UCAC5 got 1834 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 938.1'
Seting catalog search parameters based on the expected field of view 938.1 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013029 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010423 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
RA wraps around 0/360 boundary: field RA 351.0288 through 0 to 9.1191, gap 9.1191 to 351.0288
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 349 (Dec -31.2 to -20.6)
Done reading UCAC5 zone files...
Matched 1275 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1273 matched stars entering correct_measured_positions(), 1273 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1273 matched stars entering correct_measured_positions(), 1529 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
RA wraps around 0/360 boundary: field RA 351.0291 through 0 to 9.1191, gap 9.1191 to 351.0291
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 349 (Dec -31.2 to -20.6)
Done reading UCAC5 zone files...
Matched 1275 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1273 matched stars entering correct_measured_positions(), 1529 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Accuracy estimation diagnostic: 1273 matched stars entering correct_measured_positions(), 1529 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Excluding outliers - 1273 stars left (next iteration limit 1400)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits N_match=1273 sigma_overall_arcsec=0.387 sigma_q1_arcsec=0.346 sigma_q2_arcsec=0.385 sigma_q3_arcsec=0.447 sigma_q4_arcsec=0.389 n_q1=432 n_q2=226 n_q3=403 n_q4=212 worst_quadrant_to_overall_ratio=1.156
The image catalog is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits -region wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.GYU0njXVVM (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
WCS_IMAGE_NAME=wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
WCS-calibrated image found: wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
Checking if the catalog wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits.wcscat corresponding to the image wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits alredy exist and is non-empty...
Catalog wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits.wcscat corresponding to the image wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
WCS catalog name: wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=148, bad_region=313, passed=1496
Got 1496 stars (including 1080 good ones) from the SExtractor catalog wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits.wcscat 
util/solve_plate_with_UCAC5 got 1496 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.7'
Seting catalog search parameters based on the expected field of view 937.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013024 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010419 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
RA wraps around 0/360 boundary: field RA 351.0294 through 0 to 8.9185, gap 8.9185 to 351.0294
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 349 (Dec -31.2 to -20.6)
Done reading UCAC5 zone files...
Matched 1037 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1037 matched stars entering correct_measured_positions(), 1035 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.42" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1037 matched stars entering correct_measured_positions(), 1226 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.42" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
RA wraps around 0/360 boundary: field RA 351.0292 through 0 to 8.9191, gap 8.9191 to 351.0292
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 349 (Dec -31.2 to -20.6)
Done reading UCAC5 zone files...
Matched 1037 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1037 matched stars entering correct_measured_positions(), 1227 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.41" 
Accuracy estimation diagnostic: 1037 matched stars entering correct_measured_positions(), 1227 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.41" 
Excluding outliers - 1037 stars left (next iteration limit 1140)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: SIP order 2 trial: matched=1037 robust_rms=6.243 arcsec worst_quadrant_rms=9.646 arcsec
SIP_REFIT: SIP order 3 trial: matched=1037 robust_rms=0.661 arcsec worst_quadrant_rms=0.742 arcsec
SIP_REFIT: SIP order 5 trial: matched=1037 robust_rms=0.421 arcsec worst_quadrant_rms=0.483 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=1037 robust_rms_before=1.120 arcsec robust_rms_before_corrected=0.401 arcsec robust_rms_after=0.421 arcsec worst_quadrant_rms_before=0.518 worst_quadrant_rms_after=0.483
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.518 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits N_match=1037 sigma_overall_arcsec=0.419 sigma_q1_arcsec=0.420 sigma_q2_arcsec=0.381 sigma_q3_arcsec=0.499 sigma_q4_arcsec=0.386 n_q1=357 n_q2=189 n_q3=311 n_q4=180 worst_quadrant_to_overall_ratio=1.190
The image catalog is written to wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits -region wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.zqxOWa5z3C (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
WCS_IMAGE_NAME=wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
WCS-calibrated image found: wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
Checking if the catalog wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits.wcscat corresponding to the image wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits alredy exist and is non-empty...
Catalog wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits.wcscat corresponding to the image wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
WCS catalog name: wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=134, bad_region=315, passed=1520
Got 1520 stars (including 1109 good ones) from the SExtractor catalog wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits.wcscat 
util/solve_plate_with_UCAC5 got 1520 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.7'
Seting catalog search parameters based on the expected field of view 937.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013024 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010419 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
RA wraps around 0/360 boundary: field RA 351.0294 through 0 to 8.9183, gap 8.9183 to 351.0294
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 349 (Dec -31.2 to -20.6)
Done reading UCAC5 zone files...
Matched 1066 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1066 matched stars entering correct_measured_positions(), 1065 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.40" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1066 matched stars entering correct_measured_positions(), 1256 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.40" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
RA wraps around 0/360 boundary: field RA 351.0293 through 0 to 8.9188, gap 8.9188 to 351.0293
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 349 (Dec -31.2 to -20.6)
Done reading UCAC5 zone files...
Matched 1067 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1067 matched stars entering correct_measured_positions(), 1255 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Accuracy estimation diagnostic: 1067 matched stars entering correct_measured_positions(), 1255 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Excluding outliers - 1067 stars left (next iteration limit 1172)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: SIP order 2 trial: matched=1067 robust_rms=6.234 arcsec worst_quadrant_rms=9.742 arcsec
SIP_REFIT: SIP order 3 trial: matched=1067 robust_rms=0.599 arcsec worst_quadrant_rms=0.684 arcsec
SIP_REFIT: SIP order 5 trial: matched=1067 robust_rms=0.389 arcsec worst_quadrant_rms=0.462 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=1067 robust_rms_before=1.100 arcsec robust_rms_before_corrected=0.388 arcsec robust_rms_after=0.389 arcsec worst_quadrant_rms_before=0.467 worst_quadrant_rms_after=0.462
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.467 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits N_match=1067 sigma_overall_arcsec=0.391 sigma_q1_arcsec=0.367 sigma_q2_arcsec=0.337 sigma_q3_arcsec=0.457 sigma_q4_arcsec=0.351 n_q1=365 n_q2=195 n_q3=325 n_q4=182 worst_quadrant_to_overall_ratio=1.170
The image catalog is written to wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits -region wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Saving the final (post-refit) wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits to local_wcs_cache/
'wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits' -> 'local_wcs_cache/wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits'
Saving the final (post-refit) wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits to local_wcs_cache/
'wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits' -> 'local_wcs_cache/wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits'
Saving the final (post-refit) wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits to local_wcs_cache/
'wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits' -> 'local_wcs_cache/wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits'
Saving the final (post-refit) wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits to local_wcs_cache/
'wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits' -> 'local_wcs_cache/wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits sigma_overall=0.421 worst_q_ratio=1.074
ref2=Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits sigma_overall=0.387 worst_q_ratio=1.156
new1=fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits sigma_overall=0.419 worst_q_ratio=1.190
new2=fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits sigma_overall=0.391 worst_q_ratio=1.170
reference average sigma_overall=0.404 worst_q_ratio=1.115
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418_astrometric_residuals.png (1269 matched stars from wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.36 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419_astrometric_residuals.png (1273 matched stars from wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.36 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230_astrometric_residuals.png (1037 matched stars from wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.37 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231_astrometric_residuals.png (1067 matched stars from wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.34 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits'
Saving fully-calibrated image wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits'
Preparing the HTML report for the field Scl-01-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field Scl-01-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
  
SExtractor catalog cache: saved Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.cat to cache
SExtractor catalog cache: saved Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
Creating symlink local_wcs_cache/wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
Creating symlink local_wcs_cache/wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
Creating symlink local_wcs_cache/wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Found WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
Plate-solving the images
wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits exists and is non-empty
wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits exists and is non-empty
wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits exists and is non-empty
wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits (1st reference image)
verification OK: wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
Image size: 937.8'x624.7'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 23:59:59.880 -25:59:51.98 J2000 4789.000 3195.000 
###################################
The image scale is 5.88"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.8"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits (1st new image)
verification OK: wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
Image size: 937.7'x624.6'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 00:00:01.831 -26:00:28.86 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 23:59:59.880 -25:59:51.98
Second-epoch image center 00:00:01.831 -26:00:28.86
Angular distance between the image centers 0.0126 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits (2nd new image)
verification OK: wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
Image size: 937.7'x624.6'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 00:00:01.209 -26:00:20.38 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 23:59:59.880 -25:59:51.98
Second-epoch image center 00:00:01.209 -26:00:20.38
Angular distance between the image centers 0.0093 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  00:00:01.831 -26:00:28.86
Second-epoch second image center 00:00:01.209 -26:00:20.38
Angular distance between the image centers 0.00331 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits &> /tmp/tmp.nIfsxRygMM
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits &> /tmp/tmp.7082DVaHAK
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits &> /tmp/tmp.ZIyc6KlNz0
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits &> /tmp/tmp.zZo2NY8a9H
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
Calibrating the magnitude scale
Found non-empty wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits and wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits and wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat 
Found non-empty wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits and wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat
The reference image (wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits) and catalog (wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat) found
'wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat' -> 'wcsmag.cat'
The field straddles RA=0: the RA boundaries wrap around (min > max)
Read 11986 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 350.9560 to 9.1144 deg, Dec -31.2631 to -20.5314 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 350.9560 to 9.1144 deg, Dec -31.2631 to -20.5314 deg
Loaded 4450 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 3548 out of 3632 total matches.
Matched with Tycho-2 3632 out of 11986 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.108150
a=0.000000 b=1.000000 c=22.108150
From vast_summary.log: estimated ref. image limiting mag.:  -8.27
Updating vast_summary.log: Estimated ref. image limiting mag.:  13.84

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  13.84

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
The field straddles RA=0: the RA boundaries wrap around (min > max)
Read 11986 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 350.9560 to 9.1144 deg, Dec -31.2631 to -20.5314 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 350.9560 to 9.1144 deg, Dec -31.2631 to -20.5314 deg
Loaded 4450 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 3548 out of 3632 total matches.
Matched with Tycho-2 3632 out of 11986 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
Forced-photometry filter: calibrated wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits -> calib.txt_param_ref_wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits (aperture=4.8)
The field straddles RA=0: the RA boundaries wrap around (min > max)
Read 12014 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 350.9532 to 9.1191 deg, Dec -31.2609 to -20.5233 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 350.9532 to 9.1191 deg, Dec -31.2609 to -20.5233 deg
Loaded 4454 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 3592 out of 3675 total matches.
Matched with Tycho-2 3675 out of 12014 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
Forced-photometry filter: calibrated wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits -> calib.txt_param_ref_wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits (aperture=4.8)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 9 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.1 pix  Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
 2.1 pix  Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
 2.2 pix  fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
 2.2 pix  fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
Limiting magnitude estimates:
 13.8 mag.  Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
 13.8 mag.  Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
 13.4 mag.  fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
 13.4 mag.  fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
All-image limiting magnitude estimate:  13.4 (SNR )  12.9 (80% of stars)  with default.sex.telephoto_lens_vSTL
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
############ /tmp/tmp.nIfsxRygMM (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits' -> 'wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
WCS_IMAGE_NAME=wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
WCS-calibrated image found: wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
Checking if the catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat corresponding to the image wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits alredy exist and is non-empty...
Catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat corresponding to the image wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
WCS catalog name: wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=4, blended=392, bad_region=2207, passed=11982
Got 11982 stars (including 9514 good ones) from the SExtractor catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat 
util/solve_plate_with_UCAC5 got 11982 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.8'
Seting catalog search parameters based on the expected field of view 937.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013025 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010420 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
RA wraps around 0/360 boundary: field RA 350.9560 through 0 to 9.1144, gap 9.1144 to 350.9560
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 349 (Dec -31.3 to -20.5)
Done reading UCAC5 zone files...
Matched 4850 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4842 matched stars entering correct_measured_positions(), 4843 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.50" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4842 matched stars entering correct_measured_positions(), 10305 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.49" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
RA wraps around 0/360 boundary: field RA 350.9542 through 0 to 9.1143, gap 9.1143 to 350.9542
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 349 (Dec -31.3 to -20.5)
Done reading UCAC5 zone files...
Matched 4852 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4845 matched stars entering correct_measured_positions(), 10305 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.50" 
Accuracy estimation diagnostic: 4845 matched stars entering correct_measured_positions(), 10305 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.51" 
Excluding outliers - 4845 stars left (next iteration limit 5326)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits N_match=4845 sigma_overall_arcsec=0.527 sigma_q1_arcsec=0.507 sigma_q2_arcsec=0.494 sigma_q3_arcsec=0.635 sigma_q4_arcsec=0.457 n_q1=1606 n_q2=902 n_q3=1487 n_q4=850 worst_quadrant_to_overall_ratio=1.205
The image catalog is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits -region wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.7082DVaHAK (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits 572.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits' -> 'wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
WCS_IMAGE_NAME=wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
WCS-calibrated image found: wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
Checking if the catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat corresponding to the image wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits alredy exist and is non-empty...
Catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat corresponding to the image wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
WCS catalog name: wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=2, blended=351, bad_region=2140, passed=12012
Got 12012 stars (including 9580 good ones) from the SExtractor catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat 
util/solve_plate_with_UCAC5 got 12012 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 938.1'
Seting catalog search parameters based on the expected field of view 938.1 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013029 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010423 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
RA wraps around 0/360 boundary: field RA 350.9532 through 0 to 9.1191, gap 9.1191 to 350.9532
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 349 (Dec -31.3 to -20.5)
Done reading UCAC5 zone files...
Matched 4849 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4841 matched stars entering correct_measured_positions(), 4841 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.49" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4841 matched stars entering correct_measured_positions(), 10400 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.48" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
RA wraps around 0/360 boundary: field RA 350.9538 through 0 to 9.1190, gap 9.1190 to 350.9538
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 349 (Dec -31.3 to -20.5)
Done reading UCAC5 zone files...
Matched 4849 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4841 matched stars entering correct_measured_positions(), 10400 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.49" 
Accuracy estimation diagnostic: 4841 matched stars entering correct_measured_positions(), 10400 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.50" 
Excluding outliers - 4841 stars left (next iteration limit 5325)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits N_match=4841 sigma_overall_arcsec=0.513 sigma_q1_arcsec=0.485 sigma_q2_arcsec=0.461 sigma_q3_arcsec=0.658 sigma_q4_arcsec=0.462 n_q1=1613 n_q2=908 n_q3=1478 n_q4=842 worst_quadrant_to_overall_ratio=1.282
The image catalog is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits -region wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.ZIyc6KlNz0 (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
WCS_IMAGE_NAME=wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
WCS-calibrated image found: wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
Checking if the catalog wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits.wcscat corresponding to the image wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits alredy exist and is non-empty...
Catalog wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits.wcscat corresponding to the image wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
WCS catalog name: wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=4, blended=254, bad_region=1985, passed=9816
Got 9816 stars (including 7636 good ones) from the SExtractor catalog wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits.wcscat 
util/solve_plate_with_UCAC5 got 9816 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.7'
Seting catalog search parameters based on the expected field of view 937.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013024 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010419 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
RA wraps around 0/360 boundary: field RA 350.9541 through 0 to 9.0330, gap 9.0330 to 350.9541
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 349 (Dec -31.3 to -20.5)
Done reading UCAC5 zone files...
Matched 4847 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4840 matched stars entering correct_measured_positions(), 4840 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.62" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4840 matched stars entering correct_measured_positions(), 8308 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.60" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
RA wraps around 0/360 boundary: field RA 350.9540 through 0 to 9.0335, gap 9.0335 to 350.9540
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 349 (Dec -31.3 to -20.5)
Done reading UCAC5 zone files...
Matched 4846 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4840 matched stars entering correct_measured_positions(), 8308 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.62" 
Accuracy estimation diagnostic: 4840 matched stars entering correct_measured_positions(), 8308 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.62" 
Excluding outliers - 4840 stars left (next iteration limit 5324)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: SIP order 2 trial: matched=4840 robust_rms=6.481 arcsec worst_quadrant_rms=10.068 arcsec
SIP_REFIT: SIP order 3 trial: matched=4840 robust_rms=0.846 arcsec worst_quadrant_rms=1.171 arcsec
SIP_REFIT: SIP order 5 trial: matched=4840 robust_rms=0.682 arcsec worst_quadrant_rms=0.924 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4840 robust_rms_before=1.238 arcsec robust_rms_before_corrected=0.664 arcsec robust_rms_after=0.682 arcsec worst_quadrant_rms_before=0.911 worst_quadrant_rms_after=0.924
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.911 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits N_match=4840 sigma_overall_arcsec=0.629 sigma_q1_arcsec=0.629 sigma_q2_arcsec=0.502 sigma_q3_arcsec=0.804 sigma_q4_arcsec=0.567 n_q1=1627 n_q2=965 n_q3=1416 n_q4=832 worst_quadrant_to_overall_ratio=1.279
The image catalog is written to wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits -region wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.zZo2NY8a9H (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
WCS_IMAGE_NAME=wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
WCS-calibrated image found: wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
Checking if the catalog wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits.wcscat corresponding to the image wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits alredy exist and is non-empty...
Catalog wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits.wcscat corresponding to the image wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
WCS catalog name: wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=2, blended=242, bad_region=1973, passed=9798
Got 9798 stars (including 7630 good ones) from the SExtractor catalog wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits.wcscat 
util/solve_plate_with_UCAC5 got 9798 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.7'
Seting catalog search parameters based on the expected field of view 937.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013024 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010419 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
RA wraps around 0/360 boundary: field RA 350.9542 through 0 to 9.0329, gap 9.0329 to 350.9542
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 349 (Dec -31.3 to -20.5)
Done reading UCAC5 zone files...
Matched 4848 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4841 matched stars entering correct_measured_positions(), 4841 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.62" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4841 matched stars entering correct_measured_positions(), 8306 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.61" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
RA wraps around 0/360 boundary: field RA 350.9541 through 0 to 9.0334, gap 9.0334 to 350.9541
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 349 (Dec -31.3 to -20.5)
Done reading UCAC5 zone files...
Matched 4848 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4841 matched stars entering correct_measured_positions(), 8306 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.62" 
Accuracy estimation diagnostic: 4841 matched stars entering correct_measured_positions(), 8306 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.62" 
Excluding outliers - 4841 stars left (next iteration limit 5325)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: SIP order 2 trial: matched=4841 robust_rms=6.368 arcsec worst_quadrant_rms=10.181 arcsec
SIP_REFIT: SIP order 3 trial: matched=4841 robust_rms=0.851 arcsec worst_quadrant_rms=1.188 arcsec
SIP_REFIT: SIP order 5 trial: matched=4841 robust_rms=0.673 arcsec worst_quadrant_rms=0.937 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4841 robust_rms_before=1.238 arcsec robust_rms_before_corrected=0.675 arcsec robust_rms_after=0.673 arcsec worst_quadrant_rms_before=0.938 worst_quadrant_rms_after=0.937
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.938 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits N_match=4841 sigma_overall_arcsec=0.620 sigma_q1_arcsec=0.617 sigma_q2_arcsec=0.495 sigma_q3_arcsec=0.855 sigma_q4_arcsec=0.538 n_q1=1628 n_q2=964 n_q3=1411 n_q4=838 worst_quadrant_to_overall_ratio=1.379
The image catalog is written to wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits -region wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Skipping WCS quality comparison: not the first SExtractor pass (default.sex.telephoto_lens_vSTL)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
Saving fully-calibrated image wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/wcs_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits
Preparing the HTML report for the field Scl-01-Q2b1x1 with default.sex.telephoto_lens_vSTL
Forced photometry on wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits at 00:00:26.05 -28:58:05.1:  13.88 +/- 0.23  detection
Forced photometry on wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits at 00:00:26.05 -28:58:05.1:  14.23 +/- 0.30  detection
Forced photometry reference-image weighted average:  14.01 +/- 0.18
Forced photometry filter REJECTED candidate at 00:00:26.05 -28:58:05.1: ref_mag=14.01 +/- 0.18 new_mean_mag=13.3786 delta=0.63 (need > 0.90)
make_report_in_HTML.sh Phase 1 (network queries): 1s
Pre-generating preview images in parallel...
Done pre-generating preview images.
Pre-generating finding charts in parallel...
Done pre-generating finding charts.
make_report_in_HTML.sh Pre-generation: 0s
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 20812_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231
The candidate 20812_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231 did not pass the final checks
Discovery image 2     2026 09 03.24956    2461286.74956    10.23    23:53:17.24 -25:56:04.2   3875 3235   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits

Rejecting candidate due to large distance (12.3") between the two second-epoch detections
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 20813_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231
The candidate 20813_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231 did not pass the final checks
Discovery image 2     2026 09 03.24956    2461286.74956    10.27    23:31:48.34 -27:00:50.4   0970 2491   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits

Rejecting candidate due to large distance (11.9") between the two second-epoch detections
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 20817_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231
The candidate 20817_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231 did not pass the final checks
Discovery image 2     2026 09 03.24956    2461286.74956    11.51    23:54:18.21 -27:38:37.9   4020 2204   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits

Rejecting candidate due to large distance (11.8") between the two second-epoch detections
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 20818_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231
The candidate 20818_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231 did not pass the final checks
Discovery image 2     2026 09 03.24956    2461286.74956    11.54    23:30:57.40 -29:49:20.7   0940 0773   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits

Rejecting candidate due to large distance (12.2") between the two second-epoch detections
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 20819_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231
The candidate 20819_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231 did not pass the final checks
Discovery image 2     2026 09 03.24956    2461286.74956    11.69    23:29:14.87 -27:01:34.9   0620 2464   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits

Rejecting candidate due to large distance (12.2") between the two second-epoch detections
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 20823_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231
The candidate 20823_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231 did not pass the final checks
Discovery image 2     2026 09 03.24956    2461286.74956    12.13    23:37:14.79 -22:06:36.8   1592 5505   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits

Rejecting candidate due to large distance (11.0") between the two second-epoch detections
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 20830_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231
The candidate 20830_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231 did not pass the final checks
Discovery image 2     2026 09 03.24956    2461286.74956    12.48    23:36:31.70 -22:24:52.1   1498 5316   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits

Rejecting candidate due to large distance (11.9") between the two second-epoch detections
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 20841_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231
The candidate 20841_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231 did not pass the final checks
Discovery image 2     2026 09 03.24956    2461286.74956    12.72    00:17:28.09 -23:15:29.5   7224 4812   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits

Rejecting candidate due to large distance (11.8") between the two second-epoch detections
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 20861_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231
The candidate 20861_fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231 did not pass the final checks
Discovery image 1     2026 09 03.24907    2461286.74907    13.36    00:00:26.02 -28:58:04.4   4835 1407   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-58-29_20.00sec_-0.00C_LIGHT_0230.fits
Discovery image 2     2026 09 03.24956    2461286.74956    13.39    00:00:26.08 -28:58:05.8   4837 1405   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Scl-01-Q2b1x1_031144_TTUQ2b1x1_265175_TCpj8kq6/fd_Scl-01-Q2b1x1_2026-09-03_00-59-12_20.00sec_-0.00C_LIGHT_0231.fits

make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 1s
Prepared the HTML report for the field Scl-01-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
########### Completed Scl-01-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461286.74906676 -observatory V36
11:12:35.11 +06:38:10.2 Mercury (-1.2mag)
13:25:26.53 -12:56:00.3 Venus (-4.6mag)
07:02:58.97 +23:13:03.0 Mars (1.2mag)
09:05:41.17 +17:11:39.3 Jupiter (-1.8mag)
00:52:37.81 +02:45:03.7 Saturn (0.5mag)
04:13:36.49 +21:01:47.0 Uranus (5.7mag)
00:14:07.35 -00:00:40.9 Neptune (7.7mag)
20:25:52.99 -23:38:38.2 Pluto (14.5mag)
03:33:50.60 +23:57:39.7 Moon (-10.7mag)
-rw-r--r-- 1 apache apache 363 Sep  3 03:14 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461286.74906676:
09:05:47.57 +17:11:09.3 Io (6.2mag)
09:05:45.21 +17:11:20.6 Europa (6.3mag)
09:05:29.71 +17:12:37.5 Ganymede (5.7mag)
09:05:31.04 +17:12:27.1 Callisto (6.9mag)
09:03:20.26 +17:26:16.2 Himalia (15.7mag)
09:05:45.63 +17:11:19.1 Thebe (16.6mag)
09:02:59.38 +17:20:31.9 Elara (17.7mag)
09:09:39.91 +16:40:30.6 Pasiphae (17.9mag)
09:07:03.73 +17:28:19.9 Carme (19.0mag)
00:52:49.60 +02:44:55.9 Titan (8.3mag)
00:52:33.60 +02:44:49.0 Rhea (9.6mag)
00:53:02.67 +02:47:46.0 Iapetus (11.0mag)
00:52:37.89 +02:44:20.1 Hyperion (14.3mag)
00:51:28.91 +02:35:11.4 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Sep  3 03:14 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461286.74906676:
21:33:19.94 -03:09:37.1 JWST
11:10:53.56 +46:10:29.5 Chandra
10:15:42.34 -56:53:34.1 XMM-Newton
-rw-r--r-- 1 apache apache 96 Sep  3 03:14 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461286.74906676 -observatory V36
03:37:49.58 +19:08:30.6 17.4mag P/1996 R2 (Lagerkvist)
18:01:39.49 -34:17:04.2 14.3mag P/2010 H2 (Vales)
07:16:20.54 -70:04:56.1 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:15:10.73 +33:35:48.2 17.7mag C/2017 K2 (PANSTARRS)
04:45:03.82 +44:50:22.6 15.6mag P/2021 N1 (ZTF)
04:45:03.86 +44:50:22.6 15.6mag P/2021 N1 (ZTF)
22:16:45.68 +29:08:54.4 17.4mag C/2022 E2 (ATLAS)
07:07:01.54 +26:03:19.9 16.8mag C/2022 N2 (PANSTARRS)
10:45:45.45 +27:22:32.4 17.0mag C/2022 QE78 (ATLAS)
09:46:04.76 +05:15:14.9 18.0mag C/2022 R6 (PANSTARRS)
15:30:47.98 -15:17:34.6 14.8mag C/2023 R1 (PANSTARRS)
08:34:45.68 +32:39:03.2 15.7mag C/2024 E1 (Wierzchos)
15:06:09.45 +15:22:13.8 17.9mag C/2024 G6 (ATLAS)
18:36:23.07 +43:18:42.3 13.7mag C/2024 J3 (ATLAS)
20:31:49.85 +49:29:12.4 17.4mag C/2024 R4 (PANSTARRS)
05:33:21.18 -12:58:38.0 15.2mag C/2024 T5 (ATLAS)
07:10:07.44 +19:20:37.8 17.8mag C/2025 J1 (Borisov)
11:11:31.86 +19:04:52.7 16.9mag C/2025 V2 (Rankin)
13:16:21.21 +00:26:23.1 16.8mag C/2025 Y1 (ATLAS)
16:31:30.93 +74:40:14.3 16.2mag C/2026 A2 (Bok)
03:07:31.96 +46:14:23.7 17.4mag C/2026 B2 (Sun-Gao)
12:09:32.65 +10:56:58.5 17.5mag A/2026 E1
22:22:38.89 -34:39:25.6 13.3mag 10P/Tempel
11:45:28.49 -05:10:03.1 16.3mag 29P/Schwassmann-Wachmann
12:00:24.93 -03:48:29.1 17.6mag 63P/Wild
00:46:47.44 -06:48:41.8 15.4mag 65P/Gunn
06:31:22.32 +19:32:45.2 17.1mag 78P/Gehrels
03:16:44.41 +14:55:46.7 16.7mag 88P/Howell
05:24:55.77 +27:04:18.6 17.6mag 112P/Urata-Niijima
07:19:38.49 +25:48:43.5 17.9mag 114P/Wiseman-Skiff
10:18:48.45 +21:42:58.0 14.8mag 123P/West-Hartley
12:37:45.78 -19:54:53.8 17.4mag 124P/Mrkos
06:12:24.77 +20:45:27.2 15.9mag 128P/Shoemaker-Holt
23:54:24.13 +02:35:02.5 17.3mag 139P/Vaisala-Oterma
02:45:46.52 -17:59:49.1 15.4mag 161P/Hartley-IRAS
09:47:38.85 +16:39:12.0 11.9mag 169P/NEAT
03:20:41.29 +08:46:53.7 14.4mag 220P/McNaught
04:36:59.60 +35:01:05.1 15.2mag 260P/McNaught
08:20:52.88 +36:06:38.8 17.3mag 295P/LINEAR
15:22:41.82 +00:12:25.7 17.9mag 391P/Kowalski
09:24:15.96 +17:03:28.5 17.9mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.0K Sep  3 03:14 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
19:45:06.20 +18:22:48.80  V488  2026-08-30.13 9.37
18:25:12.74 -22:25:28.60  V8055  2026-08-30.22 10.89
17:17:45.96 +64:31:40.10  ASASSN-26ez  2026-08-25.13 10.87
19:02:47.09 +58:08:21.00  AT2026zwo  2026-08-24.16 15.78
04:20:07.58 -42:26:59.90  AT2026zjy  2026-08-23.03 15.91
03:08:18.02 +11:54:46.50  SN2026ymb  2026-08-23.4 16.44
20:22:32.48 -50:45:14.30  SN2026yid  2026-08-22.82 15.13
04:24:28.39 -56:20:21.60  ASASSN-26ey  2026-08-20.02 15.55
16:46:37.81 -63:14:59.80  ASASSN-26ex  2026-08-18.78 3.63
21:28:47.85 +20:31:03.60  SN 2026sfn  2026-08-16.3 17.09
23:01:28.67 -61:00:39.00  SN 2026yib  2026-08-14.85 17.36
00:22:23.20 -32:16:02.70  SN 2026whu  2026-08-14.96 16.5
19:56:21.71 -37:24:19.90  ASASSN-26ew  2026-08-13.82 14.73
13:53:14.21 +00:26:52.00  SN 2026wkv  2026-08-10.12 15.83
05:21:07.61 +23:38:20.10  TCP J05210763+2338194  2026-08-10.59 9.34
01:28:20.49 +40:13:27.10  SN2026wpd  2026-08-9.34 16.37
23:47:50.89 +49:28:51.30  SN2026wjs  2026-08-9.24 17.09
16:03:20.92 +17:43:23.70  AT2026xau  2026-08-9.3 17.71
01:10:22.05 -09:34:08.50  SN2026weo  2026-08-7.46 15.76
00:56:54.35 -35:55:29.40  AT2026wdy  2026-08-5.05 16.08
22:08:07.63 -53:03:58.90  AT2026wek  2026-08-3.82 17.17
14:51:51.34 +66:13:24.60  ASASSN-26ev  2026-08-2.15 14.02
12:06:50.79 -36:16:06.20  SN2026wgm  2026-08-1.73 15.61
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
00:34:04.08 -30:22:09.20  AT2026ntk  2026-06-18.09 17.34
20:49:13.39 +25:17:59.20  ASASSN-26du  2026-06-15.39 15.93
23:09:30.84 +32:40:42.00  SN2026oxc  2026-06-14.35 16.83
02:02:26.78 +32:04:21.30  AT2026ovz  2026-06-14.59 15.39
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
17:54:57.33 +26:32:34.20  SN 2026odc  2026-06-11.23 17.62
13:55:59.94 +17:30:37.20  SN 2026nyq  2026-06-11.1 16.24
00:50:45.14 -71:38:36.90  ASASSN-26dt  2026-06-11.13 10.22
14:42:19.73 +19:11:35.60  SN2026nyp  2026-06-10.3 16.32
12:23:23.92 +12:56:43.50  SN2026mta  2026-06-8.29 16.69
12:30:18.51 +47:12:33.20  SN2026oao  2026-06-9.32 17.02
10:51:05.21 -42:28:56.60  AT2026nvf  2026-06-8.12 16.75
13:50:22.48 -07:35:00.00  SN2026npn  2026-06-8.02 17.58
00:56:07.17 +43:01:43.20  ASASSN-26dq  2026-06-7.43 13.58
01:07:49.46 +41:59:43.70  SN 2026obc  2026-06-7.43 15.15
21:11:25.22 +14:14:31.90  ASASSN-26dr  2026-06-7.24 16.24
06:21:27.06 -65:16:42.00  ASASSN-26ds  2026-06-2.97 15.02
20:07:38.15 -21:07:05.40  SN2026mho  2026-05-25.18 -1.12
11:29:42.55 +79:01:03.10  AT2026min  2026-05-24.21 16.63
11:44:33.11 -68:48:32.90  ASASSN-26no  2026-05-24.03 8.35
19:00:42.82 -48:31:01.60  ASASSN-26dp  2026-05-22.31 -3.28
14:23:56.59 -58:37:47.40  ASASSN-26dn  2026-05-20.01 14.59
11:24:54.06 +47:57:01.60  AT2026nma  2026-05-20.29 15.46
21:27:08.58 +33:24:38.10  AT2026lli  2026-05-19.34 15.86
00:31:01.41 -13:38:51.70  AT2026nad  2026-05-19.39 15.34
-rw-r--r-- 1 apache apache 5.7K Sep  3 03:14 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
02:19:17.36 +28:57:15.8  TCP J02191736+2857158  2026-07-12.3549  12.5mag
00:44:56.43 +41:57:41.6  PNV J00445643+4157416  2026-07-13.8026  17.98Cmag
00:42:55.36 +41:17:27.0  PNV J00425536+4117270  2026-07-20.1813  17.7mag
20:35:43.64 +61:31:32.9  TCP J20354364+6131329  2026-07-20.5443  14.4mag
21:17:31.48 +22:25:51.0  TCP J21173148+2225510  2026-07-23.5577  14.8mag
00:41:24.04 +40:49:02.8  PNV J00412404+4049028  2026-07-25.0157  18.7mag
00:43:04.26 +41:02:28.6  PNV J00430426+4102286  2026-07-26.1512  20mag
14:51:51.40 +66:13:24.0  TCP J14515140+6613240  2026-07-29.2561  13.5mag
00:43:06.15 +41:22:08.2  PNV J00430615+4122082  2026-07-30.0085  19.4mag
00:41:33.23 +41:10:12.2  PNV J00413323+4110122  2026-08-02.8913  17.1mag
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
00:42:52.82 +41:10:58.6  PNV J00425282+4110586  2026-08-17.7723  19.9mag
00:42:52.83 +41:10:59.6  PNV J00425283+4110596  2026-08-18.6119  19.3mag
18:25:12.76 -22:25:29.3  TCP J18251276-2225293  2026-08-19.1062  9.4mag
18:03:09.04 +12:18:14.0  TCP J18030904+1218140  2026-08-19.5199  14.9mag
19:45:06.48 +18:22:42.2  PNV J19450648+1822422  2026-08-25.1278  9.0mag
00:42:54.65 +41:22:59.3  PNV J00425465+4122593  2026-08-25.4712  18.9mag
-rw-r--r-- 1 apache apache 190K Sep  3 03:14 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
02:37:50.952 -34:56:23.02  AT 2026yei  2026-08-07.75 20.24
00:49:13.568 +35:33:39.77  AT 2026yeh  2026-08-07.46 18.6935
00:51:29.158 +58:43:46.50  AT 2026yeg  2026-06-27.59 18.302
23:39:55.450 +21:19:37.52  SN 2026yef  2026-08-07.52 18.408
02:33:45.113 +13:18:25.70  SN 2026yee  2026-08-07.60 19.123
23:58:58.059 +31:26:23.87  AT 2026yed  2026-08-07.54 19.075
00:30:10.856 +35:23:23.27  SN 2026yec  2026-08-07.55 18.551
21:31:13.865 -31:52:55.42  AT 2026yeb  2026-08-06.61 20.01
22:05:14.663 -13:18:47.83  AT 2026yea  2026-08-04.51 20.14
20:28:43.809 -29:28:49.69  AT 2026ydz  2026-08-03.55 19.71
22:22:26.994 -02:53:12.42  SN 2026ydy  2026-08-06.36 20.1587
01:08:44.199 +44:24:53.07  AT 2026ydx  2026-08-03.37 19.6807
00:16:28.015 +46:52:44.67  AT 2026ydw  2026-08-03.38 19.8888
01:57:01.783 +28:37:00.66  AT 2026ydv  2026-08-03.43 20.3644
07:03:59.165 +50:34:37.94  AT 2026ydu  2026-08-05.50 19.1479
14:59:48.320 +41:11:10.54  AT 2026ydt  2026-08-03.62 19.92
15:30:50.100 +44:50:29.55  AT 2026yds  2026-08-03.62 20.66
21:51:45.360 +12:57:42.97  AT 2026ydr  2026-08-02.66 19.56
15:18:51.860 +43:23:37.95  AT 2026ydq  2026-07-22.66 21.65
22:00:26.940 +23:38:48.49  AT 2026ydp  2026-07-18.74 21.04
-rw-r--r-- 1 apache apache 88K Sep  3 03:14 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Thu Sep  3 03:13:44 CDT 2026
=======================================
TIMING SExtractor: 2 seconds
TIMING matching_and_photometry: 0 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 2s (0.03 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 21s (0.35 min)
    PLATE_VERIFY_AND_POINTING: 1s (0.02 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 7s (0.12 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 0s (0.00 min)
    WAIT_FOR_UCAC5: 2s (0.03 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 33s (0.55 min)
TIMING SExtractor: 4 seconds
TIMING matching_and_photometry: 0 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 6s (0.10 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 0s (0.00 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 8s (0.13 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 0s (0.00 min)
    WAIT_FOR_UCAC5: 0s (0.00 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 1s (0.02 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 15s (0.25 min)
FIELD_Scl-01-Q2b1x1: 60s (1.00 min)
=======================================
TOTAL_RUNTIME: 64s (1.07 min)
Finished: Thu Sep  3 03:14:48 CDT 2026